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Determination and application of location and angular orientation of a pill transmitter within a body

Inactive Publication Date: 2009-11-10
NASA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]These needs are met by the invention, which provides and applies an algorithm for exact determination of location coordinates and angular orientation coordinates for a mobile pill transmitter (“PT”) or other similar device that is introduced into and moves within a human or other animal body. A set of as many as eight nonlinear equations is developed and applied, relating propagation of a wireless signal between either of two, three or more or more transmitting antennas located on the PT to four or more non-coplanar receiving antennas located on a signal receiver appliance worn by the user. The equations are so

Problems solved by technology

However, as yet no such imaging mechanism has provided, at the same time, location coordinates and / or angular orientation coordinates, associated with this mechanism, indicating where the mechanism is presently located and / or presently oriented, when a particular image is made.

Method used

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  • Determination and application of location and angular orientation of a pill transmitter within a body
  • Determination and application of location and angular orientation of a pill transmitter within a body
  • Determination and application of location and angular orientation of a pill transmitter within a body

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Embodiment Construction

[0009]With reference to FIG. 1, a mobile pill transmitter {“PT”) 11 is introduced into the body of a human or other animal (“user”), and the PT moves slowly within or adjacent to a body organ, for example, the stomach, small intestine, large intestine or other organ in the GI tract. First and second signal transmitters, 12-i (i=1, 2), are provided at spaced apart locations on the PT 11 with location coordinates (x0±a·Δx0,y0±a·Δy0,z0±a·Δz0), where (x0,y0,z0) are the location coordinates of a specified center of the PT and a (011 is introduced into, and travels through a portion of, the user's body to form and transmit visual images and / or other electronic signals, using a data antenna 13 that may coincide with, or be different from, one of the antennas 12-i (i=1,2).

[0010]A signal receiving appliance 14, spaced apart from the P[1], is provided with first, second, third and fourth spaced apart, signal receiving antennas, 15-j (j=1, 2, 3, 4), which are non-coplanar so that the four ante...

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Abstract

A mobile pill transmitter system that moves through or adjacent to one or more organs in an animal's body and that provides signals from which the pill's present location and / or present angular orientation can be determined. The system also provides signals from which the present roll angle of the pill, about a selected axis, can be determined. When the location coordinates and the roll angle of the pill are within selected ranges, an aperture on the pill container releases a selected chemical into or onto the body. Optionally, the pill as it moves also provides a sequence of visually perceptible images; the times for image formation may correspond to times at which the pill transmitter system location or image satisfies one or at least four different criteria.

Description

ORIGIN OF THE INVENTION[0001]This invention was made by an employee of the U.S. government. The U.S. government has the right to make, use and / or sell the invention described herein without payment of compensation, including but not limited to payment of royalties.FIELD OF THE INVENTION[0002]This invention relates to determination of location and angular orientation of a signal transmitting mobile device within a human or other animal body.BACKGROUND OF THE INVENTION[0003]Medical imaging procedures now include, in some circumstances, provision of a sequence of images, in video format, of the interior of an organ through which the imaging mechanism passes. The images provided are often life-like and contain considerable detail. However, as yet no such imaging mechanism has provided, at the same time, location coordinates and / or angular orientation coordinates, associated with this mechanism, indicating where the mechanism is presently located and / or presently oriented, when a particu...

Claims

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Application Information

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IPC IPC(8): A61B5/05
CPCA61B1/04A61B5/06A61B1/041
Inventor SCHIPPER, JOHN F.
Owner NASA